/// <summary>
/// Generate XML for the workspace factory's category from imported block
/// definitions.
/// </summary>
/// <param name="blockLibStorage">Block Library Storage object.</param>
/// <returns>XML representation of a category.</returns>
public Element generateCategoryFromBlockLib(BlockLibraryStorage blockLibStorage)
{
var allBlockTypes = blockLibStorage.getBlockTypes();
// Object mapping block type to XML.
var blockXmlMap = blockLibStorage.getBlockXmlMap(allBlockTypes);
// Define the custom blocks in order to be able to create instances of
// them in the exporter workspace.
this.addBlockDefinitions(blockXmlMap);
// Get array of defined blocks.
var blocks = new JsArray <Blockly.Block>();
foreach (var blockType in blockXmlMap.Keys)
{
var block = FactoryUtils.getDefinedBlock(blockType, this.hiddenWorkspace);
blocks.Push(block);
}
return(FactoryUtils.generateCategoryXml(blocks, "Block Library"));
}
/// <summary>
/// Generate selector dom from block library storage. For each block in the
/// library, it has a block option, which consists of a checkbox, a label,
/// and a fixed size preview workspace.
/// </summary>
/// <param name="blockLibStorage"> Block Library Storage object.</param>
/// <param name="blockSelectorId"> ID of the div element that will contain
/// the block options.</param>
/// <returns>Map of block type to Block Option object.</returns>
public Dictionary <string, BlockOption> createBlockSelectorFromLib(BlockLibraryStorage blockLibStorage, string blockSelectorId)
{
// Object mapping each stored block type to XML.
var allBlockTypes = blockLibStorage.getBlockTypes();
var blockXmlMap = blockLibStorage.getBlockXmlMap(allBlockTypes);
// Define the custom blocks in order to be able to create instances of
// them in the exporter workspace.
this.addBlockDefinitions(blockXmlMap);
var blockSelector = Document.GetElementById(blockSelectorId);
// Clear the block selector.
Node child;
while ((child = blockSelector.FirstChild) != null)
{
blockSelector.RemoveChild(child);
}
// Append each block option's dom to the selector.
var blockOptions = new Dictionary <string, BlockOption>();
foreach (var blockType in blockXmlMap.Keys)
{
// Get preview block's XML.
var block = FactoryUtils.getDefinedBlock(blockType, this.hiddenWorkspace);
var previewBlockXml = Blockly.Xml.workspaceToDom(this.hiddenWorkspace);
// Create block option, inject block into preview workspace, and append
// option to block selector.
var blockOpt = new BlockOption(blockSelector, blockType, previewBlockXml);
blockOpt.createDom();
blockSelector.AppendChild(blockOpt.dom);
blockOpt.showPreviewBlock();
blockOptions[blockType] = blockOpt;
}
return(blockOptions);
}
/// <summary>
/// Pulls information about all blocks in the block library to generate XML
/// for the selector workpace's toolbox.
/// </summary>
/// <param name="blockLibStorage"> Block Library Storage object.</param>
/// <returns>XML representation of the toolbox.</returns>
Element generateToolboxFromLibrary(BlockLibraryStorage blockLibStorage)
{
// Create DOM for XML.
var xmlDom = goog.dom.createDom("xml", new Dictionary <string, string> {
{ "id", "blockExporterTools_toolbox" },
{ "style", "display:none" }
});
var allBlockTypes = blockLibStorage.getBlockTypes();
// Object mapping block type to XML.
var blockXmlMap = blockLibStorage.getBlockXmlMap(allBlockTypes);
// Define the custom blocks in order to be able to create instances of
// them in the exporter workspace.
this.addBlockDefinitions(blockXmlMap);
foreach (var blockType in blockXmlMap.Keys)
{
// Get block.
var block = FactoryUtils.getDefinedBlock(blockType, this.hiddenWorkspace);
var category = FactoryUtils.generateCategoryXml(new JsArray <Blockly.Block> {
block
}, blockType);
xmlDom.AppendChild(category);
}
// If there are no blocks in library and the map is empty, append dummy
// category.
if (blockXmlMap.Count == 0)
{
var category = goog.dom.createDom("category");
category.SetAttribute("name", "Next Saved Block");
xmlDom.AppendChild(category);
}
return(xmlDom);
}
